cryptbot | 1a7b82468f3a677663daab8f8142ff99cf65465d6a772f71c655b55f05395303

Analysis

max time kernel
119s
max time network
122s
platform
windows7_x64
resource
win7-en-20211208
submitted
02-01-2022 13:21

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General

Target

open__with_Pass__1234.exe
Size

2.2MB
MD5

fee1fdf36972ab6f9c6f4b9f51b08029
SHA1

dede9e00a4dee0ca1580815b25fba6639ce60a75
SHA256

1a7b82468f3a677663daab8f8142ff99cf65465d6a772f71c655b55f05395303
SHA512

85965d45a3eebc013e0b0f618dec95fab1201f46ec862045aff5ffe7b17ebee70671cdcbdea439a8d4e7064f5e164cddc7dd108355807db8abf64f160d1e2d8d

Score

10^/10

cryptbot spyware stealer

Malware Config

Extracted

Family

cryptbot

hevuto75.top

morhmu07.top

Attributes

payload_url
http://kyrolk10.top/download.php?file=aswirl.exe

Signatures

CryptBot
A C++ stealer distributed widely in bundle with other software.
spyware stealer cryptbot
Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

608 cmd.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

pid	process
608	cmd.exe

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

open__with_Pass__1234.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	open__with_Pass__1234.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	open__with_Pass__1234.exe

Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

532 timeout.exe

pid	process
532	timeout.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

open__with_Pass__1234.execmd.exe

description	pid	process	target process
PID 1704 wrote to memory of 608	1704	open__with_Pass__1234.exe	cmd.exe
PID 1704 wrote to memory of 608	1704	open__with_Pass__1234.exe	cmd.exe
PID 1704 wrote to memory of 608	1704	open__with_Pass__1234.exe	cmd.exe
PID 1704 wrote to memory of 608	1704	open__with_Pass__1234.exe	cmd.exe
PID 608 wrote to memory of 532	608	cmd.exe	timeout.exe
PID 608 wrote to memory of 532	608	cmd.exe	timeout.exe
PID 608 wrote to memory of 532	608	cmd.exe	timeout.exe
PID 608 wrote to memory of 532	608	cmd.exe	timeout.exe

C:\Users\Admin\AppData\Local\Temp\open__with_Pass__1234.exe
"C:\Users\Admin\AppData\Local\Temp\open__with_Pass__1234.exe"
1⤵
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
PID:1704

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\system32\cmd.exe" /c rd /s /q C:\Users\Admin\AppData\Local\Temp\HXihQHQkCaO & timeout 4 & del /f /q "C:\Users\Admin\AppData\Local\Temp\open__with_Pass__1234.exe"
2⤵
- Deletes itself
- Suspicious use of WriteProcessMemory
PID:608

C:\Windows\SysWOW64\timeout.exe
timeout 4
3⤵
- Delays execution with timeout.exe
PID:532

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/532-58-0x0000000000000000-mapping.dmp

Download
memory/608-57-0x0000000000000000-mapping.dmp

Download
memory/1704-54-0x0000000076001000-0x0000000076003000-memory.dmp

Filesize
8KB

Download
memory/1704-55-0x0000000000300000-0x0000000000301000-memory.dmp

Filesize
4KB

Download
memory/1704-56-0x00000000006B0000-0x00000000006F8000-memory.dmp

Filesize
288KB

Download